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Water Treatment

A Holistic Approach to Water Management

Advanced equipment, new chemistries and digital technologies help manage water use to provide efficiency, sustainability and savings Water, the “common currency” across all chemical process industries (CPI) sectors, is an integral part of every process — from upstream, where it…

Focus on Wastewater Heating

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Recently Published Books for the CPI: September 2021

Here are recently published books with relevance to the chemical process industries (CPI). September 2021.  Engineering of Power Plant and Industrial Cooling Water Systems. By Charles F. Bowman and Seth N. Bowman, CRC Press, 2021, 174 pages, $71.96. 2021 Guide…

Sequencing Batch Reactors for Water Treatment

Sequencing batch reactors (SBRs) are a variation on the activated sludge process in wastewater treatment. This article provides an overview of SBRs, including their history, current use and future outlook Sequencing batch reactors (SBRs) are a type of wastewater treatment…

Backwash Tuning for Reliable Sand Filtration

This practical guide provides information on proven backwash-tuning techniques that will improve the reliability and robustness of sand filters in water treatment applications Water is a fundamental part of virtually all plants in the chemical process industries (CPI). Examples of…

Combine three steps in one unit with this wastewater-treatment process

A cyclic activated-sludge (AS) process, trademarked te-cyc, combines biological treatment and solids settlement in a single treatment step, thereby significantly reducing the footprint compared to a conventional AS plant, which requires three separate processes — primary settlement tanks, aeration tanks…

Landfill Gas Processing: Plant-Design Considerations

There are several technologies used in the disposal of landfill gas (LFG). Here are some key elements that can guide engineers in designing an optimized LFG processing plant People generate trash. Trash is stored in landfills. Landfills contain bacteria, which…

An electrotrophic system that treats swine sewage in one step

Researchers from the Biological Systems Unit at the Okinawa Institute of Science and Technology Graduate University (OIST; Japan; www.oist.jp) have developed a bioelectrochemical system that uses bacterial communities to break down organic material from raw wastewater, and removes both nitrates…

Recently Published Books for the CPI: May 2021

The following recently published books may have relevance to various sectors of the chemical process industries (CPI). Driving Continuous Process Safety Improvement from Investigated Incidents. By the Center for Chemical Process Safety (CCPS), Wiley Publishing, 2021, 288 pages, $140.00. Industry…

Eastman starts up new dimethylaminoethanol unit in China

Eastman Chemical Co. (Kingsport, Tenn.; www.eastman.com) is pleased to announce the recent startup of its new dimethylaminoethanol (DMAE) unit at its Nanjing, China site. The addition will significantly increase the company’s DMAE capacity, support additional sales in Asia, and further…